Görtler vortices and streaks in boundary layer subject to pressure gradient: excitation by free stream vortical disturbances, nonlinear evolution and secondary …

D Xu, J Liu, X Wu - Journal of Fluid Mechanics, 2020 - cambridge.org
This paper investigates streaks and Görtler vortices in a boundary layer over a flat or
concave wall in a contracting or expanding stream, which provides a favourable or adverse …

The effects of unsteady wind on the performances of a newly developed cross-axis wind turbine: A wind tunnel study

WC Wang, JJ Wang, WT Chong - Renewable Energy, 2019 - Elsevier
For the purpose of meeting the wind field in urban area, the performances of a newly
invented cross-axis wind turbine (CAWT), which consists of the advantages of horizontal and …

[HTML][HTML] Semi-empirical wall pressure spectral modeling for zero and favorable pressure gradient flows

N Thomson, J Rocha - The Journal of the Acoustical Society of …, 2022 - pubs.aip.org
Semi-empirical models are used to predict the power spectral density of wall pressure
fluctuations in the turbulent boundary layer. Current advancements in power spectral density …

Global stability analysis of spatially developing boundary layer: Effect of streamwise pressure gradients

R Bhoraniya, V Narayanan - Fluid Dynamics, 2019 - Springer
The paper presents a global stability analysis of the two-dimensional incompressible
boundary layer with the effect of streamwise pressure gradient. A symmetric wedge flow is …

边界层流中当地感受性过程的数值研究.

沈露予, 陆昌根 - Applied Mathematics & Mechanics (1000 …, 2016 - search.ebscohost.com
边界层流中当地感受性问题的研究对层流向湍流转捩过程的预测与控制起着非常关键的作用,
尤其是对边界层内诱导产生三维Tollmien⁃ Schlichting (T⁃ S) 波成因过程的探讨具有更加重要 …

Length scale of free stream turbulence and its impact on bypass transition in a boundary layer

J Grzelak, Z Wierciński - Journal of Applied Fluid Mechanics, 2017 - jafmonline.net
An experimental investigation was carried out to study the turbulent flow over a flat plate in a
subsonic wind tunnel. The enhanced level of turbulence was generated by five wicker grids …

Effect of Pressure Gradient on Local Excitation of Boundary-layer Instability Due to Free-stream Turbulence and Micro Surface Roughness

L Shen, C Lu - Journal of Applied Fluid Mechanics, 2021 - jafmonline.net
The prediction and control of the laminar-turbulent transition is crucial to the designs of
vehicles, turbines, etc. The initial condition of transition depends on the exciting process of …

Influence of freestream turbulence intensity on bypass transition parameters in a boundary layer

J Grzelak, Z Wierciński - Journal of Fluids …, 2017 - asmedigitalcollection.asme.org
An experimental investigation was carried out to study the turbulent flow behind passive
grids in a subsonic wind tunnel. The enhanced level of turbulence was generated by five …

Boundary Layer on an Inclined Flat Plate

R Bhoraniya, G Swaminathan, V Narayanan - Global Stability Analysis of …, 2023 - Springer
This chapter presents a global stability analysis of the two-dimensional incompressible
boundary layer with the effect of streamwise pressure gradients. A symmetric wedge flow …

Modelling of Wall Pressure Fluctuations Induced by Turbulent Boundary Layer Flow

NG Thomson - 2022 - repository.library.carleton.ca
Semi-empirical models are used to predict the power spectral density of wall pressure
fluctuations in the turbulent boundary layer. From the analysis of current semi-empirical …